I usually choose to remove all the spyware programs found, because I frankly don't like having that sort of thing, but I do understand that that is somewhat dangerous. For those who use any microsoft operating system, I would have to suggest that you download Ad-aware and run it, just once - I know I for one was surprised at how much stuff had been installed without my consent. BearShare in particular used to be notorious for doing this; now, it only asks at the time of installation whether you want to install its "sponsoring software" or words to that effect. (Its website claims a "no spyware" policy, thanks mat catastrophe.